lavfi: rename decimate to mpdecimate.

The next commit will introduce a proper decimation filter to be used
along with the field matching filter. To avoid confusion with this
filter which has currently a very limited usage (and will not work
properly with the fieldmatching filter), the new decimation filter will
take the decimate name, and this filter is renamed to mpdecimate.

configure

@@ -2118,7 +2118,6 @@ blackframe_filter_deps="gpl"
 boxblur_filter_deps="gpl"
 colormatrix_filter_deps="gpl"
 cropdetect_filter_deps="gpl"
-decimate_filter_deps="gpl avcodec"
 delogo_filter_deps="gpl"
 deshake_filter_deps="avcodec"
 deshake_filter_select="dsputil"
@@ -2137,6 +2136,7 @@ interlace_filter_deps="gpl"
 kerndeint_filter_deps="gpl"
 movie_filter_deps="avcodec avformat"
 mp_filter_deps="gpl avcodec swscale inline_asm"
+mpdecimate_filter_deps="gpl avcodec"
 mptestsrc_filter_deps="gpl"
 negate_filter_deps="lut_filter"
 noise_filter_deps="gpl"

doc/filters.texi

@@ -2383,7 +2383,7 @@ curves=vintage
 @end example
 @end itemize
 
-@section decimate
+@section mpdecimate
 
 Drop frames that do not differ greatly from the previous frame in
 order to reduce frame rate.

libavfilter/Makefile

@@ -109,7 +109,6 @@ OBJS-$(CONFIG_COPY_FILTER)                   += vf_copy.o
 OBJS-$(CONFIG_CROP_FILTER)                   += vf_crop.o
 OBJS-$(CONFIG_CROPDETECT_FILTER)             += vf_cropdetect.o
 OBJS-$(CONFIG_CURVES_FILTER)                 += vf_curves.o
-OBJS-$(CONFIG_DECIMATE_FILTER)               += vf_decimate.o
 OBJS-$(CONFIG_DELOGO_FILTER)                 += vf_delogo.o
 OBJS-$(CONFIG_DESHAKE_FILTER)                += vf_deshake.o
 OBJS-$(CONFIG_DRAWBOX_FILTER)                += vf_drawbox.o
@@ -137,6 +136,7 @@ OBJS-$(CONFIG_LUT_FILTER)                    += vf_lut.o
 OBJS-$(CONFIG_LUTRGB_FILTER)                 += vf_lut.o
 OBJS-$(CONFIG_LUTYUV_FILTER)                 += vf_lut.o
 OBJS-$(CONFIG_MP_FILTER)                     += vf_mp.o
+OBJS-$(CONFIG_MPDECIMATE_FILTER)             += vf_mpdecimate.o
 OBJS-$(CONFIG_NEGATE_FILTER)                 += vf_lut.o
 OBJS-$(CONFIG_NOFORMAT_FILTER)               += vf_format.o
 OBJS-$(CONFIG_NOISE_FILTER)                  += vf_noise.o

libavfilter/allfilters.c

@@ -107,7 +107,6 @@ void avfilter_register_all(void)
     REGISTER_FILTER(CROP,           crop,           vf);
     REGISTER_FILTER(CROPDETECT,     cropdetect,     vf);
     REGISTER_FILTER(CURVES,         curves,         vf);
-    REGISTER_FILTER(DECIMATE,       decimate,       vf);
     REGISTER_FILTER(DELOGO,         delogo,         vf);
     REGISTER_FILTER(DESHAKE,        deshake,        vf);
     REGISTER_FILTER(DRAWBOX,        drawbox,        vf);
@@ -135,6 +134,7 @@ void avfilter_register_all(void)
     REGISTER_FILTER(LUTRGB,         lutrgb,         vf);
     REGISTER_FILTER(LUTYUV,         lutyuv,         vf);
     REGISTER_FILTER(MP,             mp,             vf);
+    REGISTER_FILTER(MPDECIMATE,     mpdecimate,     vf);
     REGISTER_FILTER(NEGATE,         negate,         vf);
     REGISTER_FILTER(NOFORMAT,       noformat,       vf);
     REGISTER_FILTER(NOISE,          noise,          vf);

libavfilter/version.h

@@ -29,7 +29,7 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVFILTER_VERSION_MAJOR  3
-#define LIBAVFILTER_VERSION_MINOR  54
+#define LIBAVFILTER_VERSION_MINOR  55
 #define LIBAVFILTER_VERSION_MICRO 100
 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \

libavfilter/vf_mpdecimate.c

@@ -20,7 +20,7 @@
  */
 
 /**
- * @file decimate filter, ported from libmpcodecs/vf_decimate.c by
+ * @file mpdecimate filter, ported from libmpcodecs/vf_decimate.c by
  * Rich Felker.
  */
 
@@ -55,7 +55,7 @@ typedef struct {
 #define OFFSET(x) offsetof(DecimateContext, x)
 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
 
-static const AVOption decimate_options[] = {
+static const AVOption mpdecimate_options[] = {
     { "max",  "set the maximum number of consecutive dropped frames (positive), or the minimum interval between dropped frames (negative)",
       OFFSET(max_drop_count), AV_OPT_TYPE_INT, {.i64=0}, INT_MIN, INT_MAX, FLAGS },
     { "hi",   "set high dropping threshold", OFFSET(hi), AV_OPT_TYPE_INT, {.i64=64*12}, INT_MIN, INT_MAX, FLAGS },
@@ -64,7 +64,7 @@ static const AVOption decimate_options[] = {
     { NULL }
 };
 
-AVFILTER_DEFINE_CLASS(decimate);
+AVFILTER_DEFINE_CLASS(mpdecimate);
 
 /**
  * Return 1 if the two planes are different, 0 otherwise.
@@ -224,7 +224,7 @@ static int request_frame(AVFilterLink *outlink)
     return ret;
 }
 
-static const AVFilterPad decimate_inputs[] = {
+static const AVFilterPad mpdecimate_inputs[] = {
     {
         .name             = "default",
         .type             = AVMEDIA_TYPE_VIDEO,
@@ -235,7 +235,7 @@ static const AVFilterPad decimate_inputs[] = {
     { NULL }
 };
 
-static const AVFilterPad decimate_outputs[] = {
+static const AVFilterPad mpdecimate_outputs[] = {
     {
         .name          = "default",
         .type          = AVMEDIA_TYPE_VIDEO,
@@ -244,15 +244,15 @@ static const AVFilterPad decimate_outputs[] = {
     { NULL }
 };
 
-AVFilter avfilter_vf_decimate = {
-    .name        = "decimate",
+AVFilter avfilter_vf_mpdecimate = {
+    .name        = "mpdecimate",
     .description = NULL_IF_CONFIG_SMALL("Remove near-duplicate frames."),
     .init        = init,
     .uninit      = uninit,
 
     .priv_size = sizeof(DecimateContext),
     .query_formats = query_formats,
-    .inputs        = decimate_inputs,
-    .outputs       = decimate_outputs,
-    .priv_class    = &decimate_class,
+    .inputs        = mpdecimate_inputs,
+    .outputs       = mpdecimate_outputs,
+    .priv_class    = &mpdecimate_class,
 };